220111121221011 has 6 divisors (see below), whose sum is σ = 317938286208140. Its totient is φ = 146740747480668.

The previous prime is 220111121220941. The next prime is 220111121221081. The reversal of 220111121221011 is 110122121111022.

It is a happy number.

220111121221011 is a `hidden beast` number, since 220 + 1 + 1 + 11 + 212 + 210 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (220111121220941) and next prime (220111121221081).

It is not a de Polignac number, because 220111121221011 - 2¹⁸ = 220111120958867 is a prime.

It is a super-3 number, since 3×220111121221011³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220111121221081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12228395623381 + ... + 12228395623398.

Almost surely, 2^{220111121221011} is an apocalyptic number.

220111121221011 is a deficient number, since it is larger than the sum of its proper divisors (97827164987129).

220111121221011 is a wasteful number, since it uses less digits than its factorization.

220111121221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24456791246785 (or 24456791246782 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 220111121221011 its reverse (110122121111022), we get a palindrome (330233242332033).

The spelling of 220111121221011 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, eleven".